JOHN MORRIS HARDIN, JR
Pilots at Rigdale St, Houston, TX

6244361, Jun 12, 2001

Jul 14, 1999

9/353599

Laurier E. Comeau - Leduc, CA
Elis Vandenberg - Sherwood Park, CA
Edward James Cargill - Sherwood Park, CA
John Ransford Hardin - Houston TX
Terrance Dean Maxwell - Leduc, CA
Bryan James Restau - Beaumont, CA
Frank Seadio Ramirez - Humble TX
Colin Walker - Conchez-de-Bearn, FR
Rick Hay - Nisku, CA

Halliburton Energy Services, Inc. - Houston TX

E21B 706

175 61

A drilling direction control device, improvements in drilling direction control devices, methods for orienting a rotary driling system, and methods for rotary drilling. The drilling direction control device includes a rotatable drilling shaft, a housing for rotatably supporting a length of the drilling shaft, and a deflection assembly contained within the housing for bending the drilling shaft between a first support location and a second support location. The deflection assembly includes an outer ring which is rotatably supported on a circular inner peripheral surface of the housing and which has a circular inner peripheral surface that is eccentric with respect to the housing. The deflection assembly also includes an inner ring which is rotatably supported on the circular inner peripheral surface of the outer ring and which has a circular inner peripheral surface which engages the drilling shaft and which is eccentric with respect to the circular inner peripheral surface of the outer ring. Methods for orienting a rotary drilling system involve communicating a desired orientation of the drilling string to a drilling direction control device and then actuating the drilling direction control device to deflect the drilling shaft to reflect the desired orientation of the drilling shaft. The desired orientation of the drilling shaft may be communicated directly to the drilling direction control device or to the drilling direction control device through a drilling string communication system.

2002019, Dec 26, 2002

Jun 12, 2002

10/166675

Elis Vandenberg - Sherwood Park, CA
Edward Cargill - Sherwood Park, CA
John Hardin - Houston TX, US

Halliburton Energy Services, Inc. - Houston TX

E21B007/04

175/073000, 175/092000, 175/107000

A fulcrum bearing assembly for rotatably supporting a shaft within a housing, including at least one row of spherical thrust bearings positioned at a first axial position within the housing, at least one row of spherical thrust bearings positioned at a second axial position within the housing and at least one row of spherical radial bearings positioned at a third axial position within the housing. The third axial position is located between the first and second axial positions. Further, a bearing preload assembly for maintaining a bearing assembly in a preloaded condition, including a thrust bearing shoulder associated with a housing and a thrust bearing collar. The bearing assembly is axially maintained within the housing between the thrust bearing shoulder and the thrust bearing collar, wherein the thrust bearing collar is axially adjustable relative to the thrust bearing shoulder in order to preload the bearing assembly therebetween.

7336199, Feb 26, 2008

Apr 28, 2006

11/380715

Jeffrey B. Lasater - Houston TX, US
Ronald G. Earles - Houston TX, US
John R. Hardin - Houston TX, US
Imran Vehra - Houston TX, US
Randal T. Beste - Houston TX, US
Sergei Sharonov - Houston TX, US
Michael W. Holcombe - Houston TX, US
Mark A. Sitka - Houston TX, US
Richard T. Hay - Houston TX, US

Halliburton Energy Services, Inc - Houston TX

G01V 3/00

3408548, 3408544, 3408531, 439194

An inductive coupling system including a mandrel and an inner sleeve and outer housing that surround and rotate relative to the mandrel. The system also includes a mandrel electronics system and a housing electronics system that communicate electronically using a mandrel inductive coupler and a housing inductive coupler. The mandrel electronics system may also communicate with equipment on the surface. Alternatively, the system may include a mandrel and first and second mandrel electronics systems in different mandrel sections. The first and second mandrel electronics systems communicate electronically using a mandrel inductive coupler. Also alternatively, the system may include a mandrel and an inner sleeve and outer housing that surround and rotate relative to the mandrel. The system also includes a mandrel electronics system and a housing electronics system that communicate electronically using a housing inductive coupler.

2006026, Nov 30, 2006

Jul 24, 2006

11/491738

Chen-Kang Chen - Houston TX, US
Thomas Gaynor - Aberdeen, GB
Daniel Gleitman - Houston TX, US
John Hardin - Houston TX, US
Colin Walker - Conchez-de-Bearn, FR
M. Rao - Houston TX, US
Roger Boulton - Mossel Bay, ZA

E21B 7/04

175061000

A bottom hole assembly for drilling a deviated borehole includes a positive displacement motor (PDM) or a rotary steerable device (RSD) having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing may have a fixed bend therein between an upper power section and a lower bearing section . The long gauge bit powered by the motor may have a bit face with cutters thereon and a gauge section having a uniform diameter cylindrical surface . The gauge section preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.

2003001, Jan 16, 2003

Aug 29, 2002

10/230709

Chen-Kang Chen - Houston TX, US
Thomas Gaynor - Aberdeen, GB
John Hardin - Houston TX, US
Colin Walker - Conchez-de-Bearn, FR
M. Rao - Houston TX, US
Roger Boulton - Mossel Bay, ZA

E21B007/04

175/061000, 175/075000

A bottom hole assembly for drilling a deviated borehole includes a positive displacement motor (PDM) or a rotary steerable device (RSD) having a substantially uniform diameter motor housing outer surface without stabilizers extending radially therefrom. In a PDM application, the motor housing may have a fixed bend therein between an upper power section and a lower bearing section The long gauge bit powered by the motor may have a bit face with cutters thereon and a gauge section having a uniform diameter cylindrical surface The gauge section preferably has an axial length at least 75% of the bit diameter. The axial spacing between the bit face and the bend of the motor housing preferably is less than twelve times the bit diameter. According to the method of the present invention, the bit may be rotated at a speed of less than 350 rpm by the PDM and/or rotation of the RSD from the surface.